/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2006 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.emulex.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include <linux/blkdev.h> #include <linux/pci.h> #include <linux/interrupt.h> #include <scsi/scsi_device.h> #include <scsi/scsi_transport_fc.h> #include <scsi/scsi.h> #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_disc.h" #include "lpfc_scsi.h" #include "lpfc.h" #include "lpfc_logmsg.h" #include "lpfc_crtn.h" #include "lpfc_compat.h" /**********************************************/ /* mailbox command */ /**********************************************/ void lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) { MAILBOX_t *mb; void *ctx; mb = &pmb->mb; ctx = pmb->context2; /* Setup to dump VPD region */ memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->mbxCommand = MBX_DUMP_MEMORY; mb->un.varDmp.cv = 1; mb->un.varDmp.type = DMP_NV_PARAMS; mb->un.varDmp.entry_index = offset; mb->un.varDmp.region_id = DMP_REGION_VPD; mb->un.varDmp.word_cnt = (DMP_RSP_SIZE / sizeof (uint32_t)); mb->un.varDmp.co = 0; mb->un.varDmp.resp_offset = 0; pmb->context2 = ctx; mb->mbxOwner = OWN_HOST; return; } /**********************************************/ /* lpfc_read_nv Issue a READ NVPARAM */ /* mailbox command */ /**********************************************/ void lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->mbxCommand = MBX_READ_NV; mb->mbxOwner = OWN_HOST; return; } /**********************************************/ /* lpfc_read_la Issue a READ LA */ /* mailbox command */ /**********************************************/ int lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) { MAILBOX_t *mb; struct lpfc_sli *psli; psli = &phba->sli; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); INIT_LIST_HEAD(&mp->list); mb->mbxCommand = MBX_READ_LA64; mb->un.varReadLA.un.lilpBde64.tus.f.bdeSize = 128; mb->un.varReadLA.un.lilpBde64.addrHigh = putPaddrHigh(mp->phys); mb->un.varReadLA.un.lilpBde64.addrLow = putPaddrLow(mp->phys); /* Save address for later completion and set the owner to host so that * the FW knows this mailbox is available for processing. */ pmb->context1 = (uint8_t *) mp; mb->mbxOwner = OWN_HOST; return (0); } /**********************************************/ /* lpfc_clear_la Issue a CLEAR LA */ /* mailbox command */ /**********************************************/ void lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varClearLA.eventTag = phba->fc_eventTag; mb->mbxCommand = MBX_CLEAR_LA; mb->mbxOwner = OWN_HOST; return; } /**************************************************/ /* lpfc_config_link Issue a CONFIG LINK */ /* mailbox command */ /**************************************************/ void lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); /* NEW_FEATURE * SLI-2, Coalescing Response Feature. */ if (phba->cfg_cr_delay) { mb->un.varCfgLnk.cr = 1; mb->un.varCfgLnk.ci = 1; mb->un.varCfgLnk.cr_delay = phba->cfg_cr_delay; mb->un.varCfgLnk.cr_count = phba->cfg_cr_count; } mb->un.varCfgLnk.myId = phba->fc_myDID; mb->un.varCfgLnk.edtov = phba->fc_edtov; mb->un.varCfgLnk.arbtov = phba->fc_arbtov; mb->un.varCfgLnk.ratov = phba->fc_ratov; mb->un.varCfgLnk.rttov = phba->fc_rttov; mb->un.varCfgLnk.altov = phba->fc_altov; mb->un.varCfgLnk.crtov = phba->fc_crtov; mb->un.varCfgLnk.citov = phba->fc_citov; if (phba->cfg_ack0) mb->un.varCfgLnk.ack0_enable = 1; mb->mbxCommand = MBX_CONFIG_LINK; mb->mbxOwner = OWN_HOST; return; } /**********************************************/ /* lpfc_init_link Issue an INIT LINK */ /* mailbox command */ /**********************************************/ void lpfc_init_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed) { lpfc_vpd_t *vpd; struct lpfc_sli *psli; MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); psli = &phba->sli; switch (topology) { case FLAGS_TOPOLOGY_MODE_LOOP_PT: mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; break; case FLAGS_TOPOLOGY_MODE_PT_PT: mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; break; case FLAGS_TOPOLOGY_MODE_LOOP: mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_LOOP; break; case FLAGS_TOPOLOGY_MODE_PT_LOOP: mb->un.varInitLnk.link_flags = FLAGS_TOPOLOGY_MODE_PT_PT; mb->un.varInitLnk.link_flags |= FLAGS_TOPOLOGY_FAILOVER; break; case FLAGS_LOCAL_LB: mb->un.varInitLnk.link_flags = FLAGS_LOCAL_LB; break; } /* Enable asynchronous ABTS responses from firmware */ mb->un.varInitLnk.link_flags |= FLAGS_IMED_ABORT; /* NEW_FEATURE * Setting up the link speed */ vpd = &phba->vpd; if (vpd->rev.feaLevelHigh >= 0x02){ switch(linkspeed){ case LINK_SPEED_1G: case LINK_SPEED_2G: case LINK_SPEED_4G: mb->un.varInitLnk.link_flags |= FLAGS_LINK_SPEED; mb->un.varInitLnk.link_speed = linkspeed; break; case LINK_SPEED_AUTO: default: mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO; break; } } else mb->un.varInitLnk.link_speed = LINK_SPEED_AUTO; mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK; mb->mbxOwner = OWN_HOST; mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA; return; } /**********************************************/ /* lpfc_read_sparam Issue a READ SPARAM */ /* mailbox command */ /**********************************************/ int lpfc_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { struct lpfc_dmabuf *mp; MAILBOX_t *mb; struct lpfc_sli *psli; psli = &phba->sli; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->mbxOwner = OWN_HOST; /* Get a buffer to hold the HBAs Service Parameters */ if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) || ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) { kfree(mp); mb->mbxCommand = MBX_READ_SPARM64; /* READ_SPARAM: no buffers */ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, "%d:0301 READ_SPARAM: no buffers\n", phba->brd_no); return (1); } INIT_LIST_HEAD(&mp->list); mb->mbxCommand = MBX_READ_SPARM64; mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys); mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys); /* save address for completion */ pmb->context1 = mp; return (0); } /********************************************/ /* lpfc_unreg_did Issue a UNREG_DID */ /* mailbox command */ /********************************************/ void lpfc_unreg_did(struct lpfc_hba * phba, uint32_t did, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varUnregDID.did = did; mb->mbxCommand = MBX_UNREG_D_ID; mb->mbxOwner = OWN_HOST; return; } /**********************************************/ /* lpfc_read_nv Issue a READ CONFIG */ /* mailbox command */ /**********************************************/ void lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->mbxCommand = MBX_READ_CONFIG; mb->mbxOwner = OWN_HOST; return; } /*************************************************/ /* lpfc_read_lnk_stat Issue a READ LINK STATUS */ /* mailbox command */ /*************************************************/ void lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->mbxCommand = MBX_READ_LNK_STAT; mb->mbxOwner = OWN_HOST; return; } /********************************************/ /* lpfc_reg_login Issue a REG_LOGIN */ /* mailbox command */ /********************************************/ int lpfc_reg_login(struct lpfc_hba * phba, uint32_t did, uint8_t * param, LPFC_MBOXQ_t * pmb, uint32_t flag) { uint8_t *sparam; struct lpfc_dmabuf *mp; MAILBOX_t *mb; struct lpfc_sli *psli; psli = &phba->sli; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varRegLogin.rpi = 0; mb->un.varRegLogin.did = did; mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */ mb->mbxOwner = OWN_HOST; /* Get a buffer to hold NPorts Service Parameters */ if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) || ((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) { kfree(mp); mb->mbxCommand = MBX_REG_LOGIN64; /* REG_LOGIN: no buffers */ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, "%d:0302 REG_LOGIN: no buffers Data x%x x%x\n", phba->brd_no, (uint32_t) did, (uint32_t) flag); return (1); } INIT_LIST_HEAD(&mp->list); sparam = mp->virt; /* Copy param's into a new buffer */ memcpy(sparam, param, sizeof (struct serv_parm)); /* save address for completion */ pmb->context1 = (uint8_t *) mp; mb->mbxCommand = MBX_REG_LOGIN64; mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm); mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys); mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys); return (0); } /**********************************************/ /* lpfc_unreg_login Issue a UNREG_LOGIN */ /* mailbox command */ /**********************************************/ void lpfc_unreg_login(struct lpfc_hba * phba, uint32_t rpi, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varUnregLogin.rpi = (uint16_t) rpi; mb->un.varUnregLogin.rsvd1 = 0; mb->mbxCommand = MBX_UNREG_LOGIN; mb->mbxOwner = OWN_HOST; return; } static void lpfc_config_pcb_setup(struct lpfc_hba * phba) { struct lpfc_sli *psli = &phba->sli; struct lpfc_sli_ring *pring; PCB_t *pcbp = &phba->slim2p->pcb; dma_addr_t pdma_addr; uint32_t offset; uint32_t iocbCnt; int i; pcbp->maxRing = (psli->num_rings - 1); iocbCnt = 0; for (i = 0; i < psli->num_rings; i++) { pring = &psli->ring[i]; /* A ring MUST have both cmd and rsp entries defined to be valid */ if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) { pcbp->rdsc[i].cmdEntries = 0; pcbp->rdsc[i].rspEntries = 0; pcbp->rdsc[i].cmdAddrHigh = 0; pcbp->rdsc[i].rspAddrHigh = 0; pcbp->rdsc[i].cmdAddrLow = 0; pcbp->rdsc[i].rspAddrLow = 0; pring->cmdringaddr = NULL; pring->rspringaddr = NULL; continue; } /* Command ring setup for ring */ pring->cmdringaddr = (void *)&phba->slim2p->IOCBs[iocbCnt]; pcbp->rdsc[i].cmdEntries = pring->numCiocb; offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] - (uint8_t *)phba->slim2p; pdma_addr = phba->slim2p_mapping + offset; pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr); pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr); iocbCnt += pring->numCiocb; /* Response ring setup for ring */ pring->rspringaddr = (void *)&phba->slim2p->IOCBs[iocbCnt]; pcbp->rdsc[i].rspEntries = pring->numRiocb; offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] - (uint8_t *)phba->slim2p; pdma_addr = phba->slim2p_mapping + offset; pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr); pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr); iocbCnt += pring->numRiocb; } } void lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb; mb = &pmb->mb; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varRdRev.cv = 1; mb->mbxCommand = MBX_READ_REV; mb->mbxOwner = OWN_HOST; return; } void lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) { int i; MAILBOX_t *mb = &pmb->mb; struct lpfc_sli *psli; struct lpfc_sli_ring *pring; memset(pmb, 0, sizeof (LPFC_MBOXQ_t)); mb->un.varCfgRing.ring = ring; mb->un.varCfgRing.maxOrigXchg = 0; mb->un.varCfgRing.maxRespXchg = 0; mb->un.varCfgRing.recvNotify = 1; psli = &phba->sli; pring = &psli->ring[ring]; mb->un.varCfgRing.numMask = pring->num_mask; mb->mbxCommand = MBX_CONFIG_RING; mb->mbxOwner = OWN_HOST; /* Is this ring configured for a specific profile */ if (pring->prt[0].profile) { mb->un.varCfgRing.profile = pring->prt[0].profile; return; } /* Otherwise we setup specific rctl / type masks for this ring */ for (i = 0; i < pring->num_mask; i++) { mb->un.varCfgRing.rrRegs[i].rval = pring->prt[i].rctl; if (mb->un.varCfgRing.rrRegs[i].rval != FC_ELS_REQ) mb->un.varCfgRing.rrRegs[i].rmask = 0xff; else mb->un.varCfgRing.rrRegs[i].rmask = 0xfe; mb->un.varCfgRing.rrRegs[i].tval = pring->prt[i].type; mb->un.varCfgRing.rrRegs[i].tmask = 0xff; } return; } void lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb = &pmb->mb; dma_addr_t pdma_addr; uint32_t bar_low, bar_high; size_t offset; struct lpfc_hgp hgp; void __iomem *to_slim; int i; memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); mb->mbxCommand = MBX_CONFIG_PORT; mb->mbxOwner = OWN_HOST; mb->un.varCfgPort.pcbLen = sizeof(PCB_t); offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p; pdma_addr = phba->slim2p_mapping + offset; mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); /* Now setup pcb */ phba->slim2p->pcb.type = TYPE_NATIVE_SLI2; phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2; /* Setup Mailbox pointers */ phba->slim2p->pcb.mailBoxSize = sizeof(MAILBOX_t); offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p; pdma_addr = phba->slim2p_mapping + offset; phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr); phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr); /* * Setup Host Group ring pointer. * * For efficiency reasons, the ring get/put pointers can be * placed in adapter memory (SLIM) rather than in host memory. * This allows firmware to avoid PCI reads/writes when updating * and checking pointers. * * The firmware recognizes the use of SLIM memory by comparing * the address of the get/put pointers structure with that of * the SLIM BAR (BAR0). * * Caution: be sure to use the PCI config space value of BAR0/BAR1 * (the hardware's view of the base address), not the OS's * value of pci_resource_start() as the OS value may be a cookie * for ioremap/iomap. */ pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low); pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high); /* mask off BAR0's flag bits 0 - 3 */ phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + (SLIMOFF*sizeof(uint32_t)); if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64) phba->slim2p->pcb.hgpAddrHigh = bar_high; else phba->slim2p->pcb.hgpAddrHigh = 0; /* write HGP data to SLIM at the required longword offset */ memset(&hgp, 0, sizeof(struct lpfc_hgp)); to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t)); for (i=0; i < phba->sli.num_rings; i++) { lpfc_memcpy_to_slim(to_slim, &hgp, sizeof(struct lpfc_hgp)); to_slim += sizeof (struct lpfc_hgp); } /* Setup Port Group ring pointer */ offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port - (uint8_t *)phba->slim2p; pdma_addr = phba->slim2p_mapping + offset; phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr); phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr); /* Use callback routine to setp rings in the pcb */ lpfc_config_pcb_setup(phba); /* special handling for LC HBAs */ if (lpfc_is_LC_HBA(phba->pcidev->device)) { uint32_t hbainit[5]; lpfc_hba_init(phba, hbainit); memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20); } /* Swap PCB if needed */ lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb, sizeof (PCB_t)); lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0405 Service Level Interface (SLI) 2 selected\n", phba->brd_no); } void lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) { MAILBOX_t *mb = &pmb->mb; memset(pmb, 0, sizeof(LPFC_MBOXQ_t)); mb->mbxCommand = MBX_KILL_BOARD; mb->mbxOwner = OWN_HOST; return; } void lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) { struct lpfc_sli *psli; psli = &phba->sli; list_add_tail(&mbq->list, &psli->mboxq); psli->mboxq_cnt++; return; } LPFC_MBOXQ_t * lpfc_mbox_get(struct lpfc_hba * phba) { LPFC_MBOXQ_t *mbq = NULL; struct lpfc_sli *psli = &phba->sli; list_remove_head((&psli->mboxq), mbq, LPFC_MBOXQ_t, list); if (mbq) { psli->mboxq_cnt--; } return mbq; }